queryGEO             package:AnnBuilder             R Documentation

_F_u_n_c_t_i_o_n _t_o _e_x_t_r_a_c_t _a _d_a_t_a _f_i_l_e _f_r_o_m _t_h_e _G_E_O _w_e_b _s_i_t_e

_D_e_s_c_r_i_p_t_i_o_n:

     Data files that are available at GEO web site are identified by
     GEO accession numbers. Give a GEO object with the url for a common
     CGI and a GEO accession number, this function extracts data from
     the web site and returns a matrix containing the data portion of
     the file

_U_s_a_g_e:

     queryGEO(GEOObj, GEOAccNum)

_A_r_g_u_m_e_n_t_s:

  GEOObj: 'GEOObj' a GEO object

GEOAccNum: 'GEOAccNum' a character string for the GEO accession number
          of a desired file

_D_e_t_a_i_l_s:

     The GEO object contains the url for a CGI script that processes
     user's request. 'queryGEO' invokes the CGI by passing a GEO
     accession number and then processes the data file obtained.

_V_a_l_u_e:

     'queryGEO' returns a matrix containing data obtained.

_N_o_t_e:

     This function is part of the Bioconductor project at Dana-Farber
     Cancer Institute to provide Bioinformatics functionalities through
     R

_A_u_t_h_o_r(_s):

     Jianhua Zhang

_R_e_f_e_r_e_n_c_e_s:

     <URL: www.ncbi.nlm.nih.gov/geo>

_S_e_e _A_l_s_o:

     'GEO-class'

_E_x_a_m_p_l_e_s:

     ## Not run: 
     geo <- GEO()
     temp <- queryGEO(geo, "GPL49")
     ## End(Not run)

